Radio aerial



w. S\BLOCK RADIO AERIAL Filed Oct. 13 1932 Patented Nov. 7, 1933 UNITED STATES PATENT OFFICE.

1 Claim.

10 onthe frbfit' righfiender of isle WWW-BEECH Fil i dicator indicatg to the driver the position of the rightiendenlwhgi driving 15 till further object of this invention is to provide a radio antenna and combined fender indicator in which the antenna wires run vertically instead of horizontally as heretofore been the common practice.

A still further object of this invention is to provide a radio antenna which may be cheaply and easily constructed and installed upon a motor vehicle quickly and easily without requiring the skill of a mechanic.

Other objects and advantages of the invention will become apparent during the course of the following description, forming a part of this specification and in which,

Figure 1 is a side elevational view of the radio antenna showing the same installed upon the right front fender of a motor vehicle;

Figure 2 is a vertical elevational view of the invention showing a portion thereof partly broken away to illustrate the arrangement of the antenna wire and the manner in which the same is arranged within the insulated tubing;

Figure 3 is a top elevational view of the antenna form showing the same removed from the insulated tubing and illustrating the manner in which the antenna wire is wrapped or coiled therearound;

Figure 4 is a transverse cross-sectional view taken on line 4-4 of Figure 2 looking in the direction of the arrows illustrating the arrangement of the antenna wires as applied to the form received within the insulated tubing;

Figure 5 is a vertical cross-sectional view illustrating the central securing rod and the manner in which the tube ends are held together.

In the drawing, wherein for the purpose of illustrating the invention and wherein like reference characters will be employed to designate like parts throughout the same, the reference character 6 will generally be employed to designate a tube formed of an insulating material such as bakelite or the like open at both ends and preferably of the same diameter throughout its entire length.

The tube 6 has its ends provided with plugs or closures '7 and 8, each of which are provided with reduced portions 9 and 10 respectively whereby the plugs 7 and 8 may fit snugly in the ends of the tube 6 to exclude water and moisture. The upper closure 7 is provided with central screw threads 11 for receiving the screw threads 12 formed on the upper end of a rod 13 which rod extends centrally through the tube 6 and has its lower end threaded as at 14 for receiving the lower closure plug 8 which is provided with corresponding screw threads 15 whereby the plug may be threaded on the lower end of the rod 13 as clearly shown in Figures 2 and 5.

The antenna is constructed as shown in Figures 2 to 4 inclusive and comprises a sheet of insulating material 16 formed of a pliable material around which is wound the antenna wire 17 in the fashion shown in Figure 3. One end of the antenna wire 17 is connected to the flexible insulating sheet 16 as at 18 while the opposite end 19 of the antenna wire passes through an opening 20 formed in the insulating sheet 16 and is held in place by means of threads 21 Wrapped therearound.

After the antenna wire 17 has been wound upon the insulating sheets 16, the sheet is coiled into a tube as shown in Figures 2 and 4 so that the same may be easily fitted within the insulating tube 6.

After the antenna wire 17 and form 16 have been inserted in the tube 6, the lead-in 21 is threaded through a bore 22 formed in the lower end of the securing rod 13 which bore 22 communicates with a central longitudinal bore 26 whereby the lead-in wire 24 may pass through the lower end of the bolt 13 and the closure plug may then be threaded in place to securely clamp the plugs '7 and 8 in place.

The antenna may now be installed upon the vehicle fender F as shown in Figure 1, by drilling a hole therein of a corresponding size to the screw threaded lower end 14 of the rod 13 whereupon the screw threaded end 14 may be passed through the hole and securely held in place by means of a nut 25 threaded thereon the dash board where it may be connected to the antenna terminal of the radio set, not shown.

The central securing rod 13 is necessarily formed of fibre or other insulating material and not of metal because of its capacity effect. The tube 6 and plugs 7 and 8 also are formed of insulating material such as bakelite. The antenna is unaffected by weather conditions, and will withstand hot and cold weather, rain and snow.

It is to be understood, that various changes in 10 the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the sub-joined claim and that the form of the invention herewith shown and described, is to be taken as a preferred embodiment of the same.

I claim:-

The combination of a motor vehicle havin mud guards, of an antenna secured to one of said mud guards extending vertically therefrom, said antenna comprising a vertical support having screw threaded ends, a disk threaded on each of the threaded ends, a tubular housing held between the disks, a sheet of insulating material coiled cylindrically and mounted within the cylindrical insulating tube, an antenna wire coiled about the insulating sheet so that the windings thereof extend vertically and means on the lower screw threaded end of the supporting rod for fastening the antenna in place.

WILLIAM S. BLOCK. 

